CN107739823A - A kind of method of surfactant and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching - Google Patents
A kind of method of surfactant and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching Download PDFInfo
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- CN107739823A CN107739823A CN201710964511.9A CN201710964511A CN107739823A CN 107739823 A CN107739823 A CN 107739823A CN 201710964511 A CN201710964511 A CN 201710964511A CN 107739823 A CN107739823 A CN 107739823A
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- surfactant
- silver ion
- sulfide ore
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention relates to a kind of method of surfactant and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, belong to biological metallurgy technical field, follow the steps below：(1) bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into culture medium according to certain inoculum concentration, be made containing bacteria culture fluid.(2) pH value of nutrient solution is adjusted with sulfuric acid solution, is then placed within constant temperature oscillation case and is cultivated, obtains culture bacterium solution.(3) carrollite powder is added in culture bacterium solution and ore pulp is made, added surfactant and combined with silver ion catalysis agent and leached, slurry pH is controlled with sulfuric acid solution in leaching process.The method of the present invention has the features such as leaching rate is high, and reagent consumption amount is small, and production cost is low, environmental pollution is small, easy to operate, has a good application prospect.
Description
Technical field
The invention belongs to biological metallurgy technical field, more particularly to a kind of surfactant vulcanizes with silver ion concerted catalysis
The method of copper cobalt ore Bioleaching.
Background technology
Biological metallurgy technology with its have mild condition, it is easily operated, without the spy such as toxic gas produces, environmental pollution is small
Point, especially there is big advantage compared with traditional handicraft in terms of low-grade, difficult mineral resources are handled, asked in environment
Today of topic getting worse is increasingly becoming a kind of smelting process of great competitiveness.But the defects of biological metallurgy technology also ten
Clearly demarcated aobvious, i.e., leaching rate is slow, leaching cycle length.In order to accelerate leaching rate, shorten leaching cycle, metal recovery rate is improved,
Researchers the method for exploring various enhanced biological leaching ore deposits, such as add table from biology, electrochemistry, metallurgy angularly
Face activating agent catalyzing infusion, addition silver ion catalysis leaching etc..Liu Wei et al. have studied surfactant TW-20, TW-80, RB-
The influence of 1181 pairs of cobalt ore Bioleachings.Result of study shows that addition surfactant shows the contact angle of solution and mineral
Write and reduce, wetting action enhancing of the solution to mineral surfaces.When surfactant qualities concentration is less than 0.25gL-1When, surface
Growth of the activating agent to bacterium not adversely affects.Addition surfactant can change the surface nature of intermediate product sulphur, promote
Enter oxidation of the bacterium to sulphur, accelerate the dissolving of mineral surfaces passivation layer, and then mineral dissolution accelerates, metal leaching rate improves.Lan
Et al. have studied influence of the o-phenylenediamine (OPD) to Bioleaching marmatite.Result of study shows, adds appropriate surface and lives
Property agent can improve the hydrophilies of sulfur granules, enhancing bacterium promotes bacterial oxidation mineral surfaces in the absorption on sulfur granules surface
Elementary sulfur layer.Found by the chemical analysis to Bioleaching slag and EDX analyses, metallic zinc by selectivity leaching, and with not
Addition surfactant experiment increases substantially compared to leaching rate.Peng et al. have studied surface-active in the case of simple substance S is present
The influence that agent Tween-80 grows to Thiobacillus ferrooxidans.Result of study shows that addition surfactant promotes middle production
Thing S disperses mineral surfaces, improves the hydrophily of sulfur granules, is advantageous to absorption of the bacterium on sulfur granules surface, and then
Bacterium accelerates to elementary sulfur oxidation dissolution.Blazquez et al., which have studied, uses Ag+The mechanism of action of bioleaching chalcopyrite is catalyzed,
There is Ag in leaching process+In the presence of, Ag+First substitute the Cu and Fe in chalcopyrite lattice, it is changed into Cu2+With Fe2+, simultaneously
In chalcopyrite Surface Creation Ag2S.Bacterium is constantly by Fe2+It is oxidized to Fe3+, by Fe3+By Ag2S changes into Ag+, make Ag+Continue
Reacted with chalcopyrite.G ò mez E et al. researchs point out that during Bioleaching chalcopyrite, chalcopyrite surface can generate one layer
Nonconducting fine and close elementary sulfur layer, diffusion barrier is formed, make electron transmission difficult, suppress the dissolving of chalcopyrite.Add Ag+Ion
Afterwards, the Ag of generation2S forms the mixed layer of porosity and looseness with elementary sulfur, greatly improves chalcopyrite rate of dissolution, the leaching of metallic copper
Rate improves.Strengthen the dynamic (dynamical) research of sulfide mineral Bioleaching currently for addition catalyst still to be limited to add single catalysis
Agent, and for addition surfactant and Ag+Ionic catalyst combination strengthens that copper cobalt sulfide ore thing Bioleaching is dynamic (dynamical) grinds
Study carefully also rare report.
The content of the invention
It is an object of the invention to provide a kind of surfactant and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching
Method, by carrying out domestication culture to Acidithiobacillus ferrooxidans strain GF, then add the catalyst of surfactant and silver ion
Combination, and for the Bioleaching of copper cobalt sulfide ore, so as to reach the effect for improving metallic cobalt leaching rate.
The surfactant of the present invention and the method for silver ion concerted catalysis copper cobalt sulfide ore Bioleaching are according to the following steps
Carry out：
1st, the bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, be made containing bacteria culture fluid, inoculation
It is 1 to measure as the volume ratio of bacterium solution and 9K culture mediums：(5~10).
2nd, the pH value for adjusting nutrient solution with sulfuric acid solution is then placed within constant temperature oscillation case, in temperature to 1.2~2.0
Cultivated under conditions of being 140~200rpm for 30~40 DEG C and rotating speed, when to bacterium solution current potential being 580~630mV, trained
Bacteria liquid.
3rd, carrollite powder is added in culture bacterium solution and ore pulp is made, ore pulp mass concentration is 5%~20%.Add table
The combination of face activating agent and silver nitrate solution, addition are 0.1~0.3gL by surfactant concentration-1, Ag+Ion concentration
For 5~25mg/L, leached under conditions of temperature is 30~40 DEG C and rotating speed is 140~200rpm, leaching process chats
PH value control is starched between 1.2~2.0, extraction time is 3~8 days.
Each component concentration is in 9K culture mediums of the present invention：(NH4)2SO43.0g/L, K2HPO40.1g/L, KCl
0.5g/L, MgSO4·7H2O 0.5g/L, Ca (NO3)20.01g/L, FeSO4·7H2O 44.3g/L。
Surfactant of the present invention is Tween-20 or Tween-80.
The surfactant of the present invention is to use surface with the method for silver ion concerted catalysis copper cobalt sulfide ore Bioleaching
Activating agent combines with silver ion is used as catalyst.In bioleaching process, play it with silver ion in surfactant and each urge
While change acts on, surfactant can also promote the Ag in mineral surfaces generation2S dissolving, strengthen silver ion and mineral are soaked
The catalytic action gone out, and then catalytic effect strengthens, mineral dissolution accelerates, and metal leaching rate increases substantially.Add catalyst group
Close cobalt leaching rate and can reach more than 93%, more than 35% can be improved compared to the cobalt leaching rate for being not added with catalyst combination, catalysis effect
Fruit is fairly obvious.The method of the present invention has leaching rate high, and reagent consumption amount is small, and production cost is low, environmental pollution is small, operation is simple
Just the features such as, have a good application prospect.
Embodiment
The Acidithiobacillus ferrooxidans strain GF used in the embodiment of the present invention is bought in national DSMZ.
In the 9K culture mediums used in the embodiment of the present invention each component concentration for：(NH4)2SO43.0g/L, K2HPO4
0.1g/L, KCl 0.5g/L, MgSO4·7H2O 0.5g/L, Ca (NO3)20.01g/L, FeSO4·7H2O 44.3g/L。
The carrollite powder used in the embodiment of the present invention is made up of carrollite purchased in market through broken fine grinding, granularity≤75 μm
Part account for the 70%~90% of miberal powder gross weight, the mass percent of cobalt is 0.1%~5% in miberal powder.
The surface active agent tween -20 that is used in embodiment of the present invention, Tween-80 are bought in day for AR
The big luxuriant chemical reagent factory in Jinshi City.
The silver nitrate used in present example is configured to silver nitrate solution, Ag for AR, with ultra-pure water+Ion
Concentration is 5~25mg/L.
The constant-temperature shaking incubator used in the embodiment of the present invention is HZQ-C type.
The concentrated sulfuric acid is AR in the embodiment of the present invention, and sulfuric acid solution, equivalent concentration 1 are configured to deionized water
~3N.
It is PHS-3C type acidometers that slurry pH and the equipment of current potential are measured in the embodiment of the present invention.
The type inductively coupled plasma atomic emissions of Optima 8000 are used when cobalt content is measured in the embodiment of the present invention
Instrument.
Embodiment 1
Bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, is made containing bacteria culture fluid, inoculum concentration
Volume ratio for bacterium solution and 9K culture mediums is 1：9.The pH value for the sulfuric acid solution regulation nutrient solution for being 2N with concentration is to 1.8, then
It is placed in constant temperature oscillation case, is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 140rpm, to bacterium solution current potential
For 580~630mV when, obtain culture bacterium solution.
The part of granularity≤75 μm accounts for the 90% of miberal powder gross weight in the carrollite powder of use, the quality hundred of cobalt in miberal powder
Divide than being 0.1%.Carrollite powder is added in culture bacterium solution ore pulp is made, ore pulp mass concentration is 5%.Added in sample 1
Tween-20 combines with silver ion, and addition is 0.1gL by Tween-20 concentration-1, Ag+Concentration is 5mg/L；Added in sample 2
Tween-80 combines with silver ion, and addition is 0.1gL by Tween-80 concentration-1, Ag+Concentration is 5mg/L.Temperature be 30~
40 DEG C and rotating speed are leached under conditions of being 140rpm, in leaching process slurry pH control leached between 1.2~2.0
Time is 3 days, and Eh, pH value and the Co of an ore pulp are surveyed every 24h3+Concentration.After leaching terminates, Tween-20 and silver ion are added
The cobalt leaching rate of composite sample is 95.36%, and the cobalt leaching rate for adding the sample that Tween-80 combines with silver ion is 94.77%.
Same copper cobalt sulfide ore powder is leached using same method, but catalyst combination is not added in leaching process, is soaked
It is 58.54% to go out cobalt leaching rate after terminating.Catalyst combination is added compared with not adding catalyst combination, cobalt leaching rate carries respectively
High 36.82% and 36.23%.
Embodiment 2
Bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, is made containing bacteria culture fluid, inoculum concentration
Volume ratio for bacterium solution and 9K culture mediums is 1：5.The pH value for the sulfuric acid solution regulation nutrient solution for being 1N with concentration is to 1.6, then
It is placed in constant temperature oscillation case, is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 140rpm, to bacterium solution current potential
For 580~630mV when, obtain culture bacterium solution.
The part of granularity≤75 μm accounts for the 80% of miberal powder gross weight in the carrollite powder of use, the quality hundred of cobalt in miberal powder
Divide than being 5%.Carrollite powder is added in culture bacterium solution ore pulp is made, ore pulp mass concentration is 5%.Add and tell in sample 1
Temperature -20 combines with silver ion, and addition is 0.2gL by Tween-20 concentration-1, Ag+Concentration is 20mg/L；Add and tell in sample 2
Temperature -80 combines with silver ion, and addition is 0.2gL by Tween-80 concentration-1, Ag+Concentration is 20mg/L.Temperature be 30~
40 DEG C and rotating speed are leached under conditions of being 140rpm, in leaching process slurry pH control leached between 1.2~2.0
Time is 6 days, and Eh, pH value and the Co of an ore pulp are surveyed every 24h3+Concentration.After leaching terminates, Tween-20 and silver ion are added
The cobalt leaching rate of composite sample is 93.53%, and the cobalt leaching rate for adding the sample that Tween-80 combines with silver ion is 93.34%.
Same copper cobalt sulfide ore powder is leached using same method, but catalyst combination is not added in leaching process, is soaked
It is 50.54% to go out cobalt leaching rate after terminating.Catalyst combination is added compared with not adding catalyst combination, cobalt leaching rate carries respectively
High 42.99% and 42.80%.
Embodiment 3
Bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, is made containing bacteria culture fluid, inoculum concentration
Volume ratio for bacterium solution and 9K culture mediums is 1：10.The pH value for the sulfuric acid solution regulation nutrient solution for being 2N with concentration is to 1.2, then
It is placed in constant temperature oscillation case, is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 160rpm, to bacterium solution current potential
For 580~630mV when, obtain culture bacterium solution.
The part of granularity≤75 μm accounts for the 70% of miberal powder gross weight in the carrollite powder of use, the quality hundred of cobalt in miberal powder
Divide than being 1%.Carrollite powder is added in culture bacterium solution ore pulp is made, ore pulp mass concentration is 10%.Add and tell in sample 1
Temperature -20 combines with silver ion, and addition is 0.2gL by Tween-20 concentration-1, Ag+Concentration is 15mg/L；Add and tell in sample 2
Temperature -80 combines with silver ion, and addition is 0.2gL by Tween-80 concentration-1, Ag+Concentration is 15mg/L.Temperature be 30~
40 DEG C and rotating speed are leached under conditions of being 160rpm, in leaching process slurry pH control leached between 1.2~2.0
Time is 6 days, and Eh, pH value and the Co of an ore pulp are surveyed every 24h3+Concentration.After leaching terminates, Tween-20 and silver ion are added
The cobalt leaching rate of composite sample is 94.73%, and the cobalt leaching rate for adding the sample that Tween-80 combines with silver ion is 95.64%.
Same copper cobalt sulfide ore powder is leached using same method, but catalyst combination is not added in leaching process, is soaked
It is 58.69% to go out cobalt leaching rate after terminating.Catalyst combination is added compared with not adding catalyst combination, cobalt leaching rate carries respectively
High 36.04% and 36.95%.
Embodiment 4
Bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, is made containing bacteria culture fluid, inoculum concentration
Volume ratio for bacterium solution and 9K culture mediums is 1：9.The pH value for the sulfuric acid solution regulation nutrient solution for being 3N with concentration is to 1.4, then
It is placed in constant temperature oscillation case, is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 180rpm, to bacterium solution current potential
For 580~630mV when, obtain culture bacterium solution.
The part of granularity≤75 μm accounts for the 80% of miberal powder gross weight in the carrollite powder of use, the quality hundred of cobalt in miberal powder
Divide than being 2%.Carrollite powder is added in culture bacterium solution ore pulp is made, ore pulp mass concentration is 15%.Add and tell in sample 1
Temperature -20 combines with silver ion, and addition is 0.3gL by Tween-20 concentration-1, Ag+Concentration is 25mg/L；Add and tell in sample 2
Temperature -80 combines with silver ion, and addition is 0.3gL by Tween-80 concentration-1, Ag+Concentration is 25mg/L.Temperature be 30~
40 DEG C and rotating speed are leached under conditions of being 180rpm, in leaching process slurry pH control leached between 1.2~2.0
Time is 8 days, and Eh, pH value and the Co of an ore pulp are surveyed every 24h3+Concentration.After leaching terminates, Tween-20 and silver ion are added
The cobalt leaching rate of composite sample is 93.33%, and the cobalt leaching rate for adding the sample that Tween-80 combines with silver ion is 94.66%.
Same copper cobalt sulfide ore powder is leached using same method, but catalyst combination is not added in leaching process, is soaked
It is 57.88% to go out cobalt leaching rate after terminating.Catalyst combination is added compared with not adding catalyst combination, cobalt leaching rate carries respectively
High 35.45% and 36.78%.
Embodiment 5
Bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, is made containing bacteria culture fluid, inoculum concentration
Volume ratio for bacterium solution and 9K culture mediums is 1：5.The pH value for the sulfuric acid solution regulation nutrient solution for being 1N with concentration is to 2.0, then
It is placed in constant temperature oscillation case, is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 200rpm, to bacterium solution current potential
For 580~630mV when, obtain culture bacterium solution.
The part of granularity≤75 μm accounts for the 90% of miberal powder gross weight in the carrollite powder of use, the quality hundred of cobalt in miberal powder
Divide than being 1%.Carrollite powder is added in culture bacterium solution ore pulp is made, ore pulp mass concentration is 20%.Add and tell in sample 1
Temperature -20 combines with silver ion, and addition is 0.3gL by Tween-20 concentration-1, Ag+Concentration is 25mg/L；Add and tell in sample 2
Temperature -80 combines with silver ion, and addition is 0.3gL by Tween-80 concentration-1, Ag+Concentration is 25mg/L.Temperature be 30~
40 DEG C and rotating speed are leached under conditions of being 200rpm, in leaching process slurry pH control leached between 1.2~2.0
Time is 8 days, and Eh, pH value and the Co of an ore pulp are surveyed every 24h3+Concentration.After leaching terminates, Tween-20 and silver ion are added
The cobalt leaching rate of composite sample is 94.44%, and the cobalt leaching rate for adding the sample that Tween-80 combines with silver ion is 93.52%.
Same copper cobalt sulfide ore powder is leached using same method, but catalyst combination is not added in leaching process, is soaked
It is 54.38% to go out cobalt leaching rate after terminating.Catalyst combination is added compared with not adding catalyst combination, cobalt leaching rate carries respectively
High 40.06% and 39.14%.
Embodiment 6
Same copper cobalt sulfide ore powder is leached using the same terms, surfactant is individually added, individually adds Ag+Ion
And the comparison of the cobalt leaching rate of both additions combination see the table below.
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Surfactant | 71.20% | 67.42% | 72.91% | 71.88% | 69.38% |
| Ag+ | 73.55% | 69.42% | 74.24% | 72.36% | 69.66% |
| Surfactant+Ag+ | 94.77% | 93.34% | 95.64% | 94.66% | 93.52% |
Individually add surfactant, individually add Ag+The cobalt leaching rate of both ion, addition combination improves percentage
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Surfactant | 12.66% | 16.88% | 14.22% | 14.00% | 15.00% |
| Ag+ | 15.01% | 18.88% | 15.55% | 14.48% | 15.28% |
| Surfactant+Ag+ | 36.23% | 42.80% | 36.95% | 36.78% | 35.64% |
As a result show, individually add surfactant or Ag+Ion, cobalt leaching rate increase, but work as both simultaneously
During addition, cooperative effect is produced between the two, and catalytic capability gets a promotion, raising sum when individually being added beyond both.Add
Add surfactant to change the surface nature of intermediate product sulfur granules, promote the biological oxidation of sulfur granules, accelerate mineral table
The oxidation dissolution of face oxidation product layer, and then mineral dissolution accelerates.Add Ag+Ion, Ag+By lattice metalepsis, promote ore deposit
Thing dissolves, and the Ag generated2S is by Fe3+Change into Ag+, continue to react with mineral.When both add simultaneously, surfactant
With Ag+For ion while each autocatalysis is played, surfactant can change Ag+Intermediate oxidation caused by ionic catalysis
Product Ag2S surface nature, reduce Ag2The interfacial energy on S surfaces, promote it in the scattered of mineral surfaces, promote and Fe3+
Contact, Ag2S is by Fe3+Change into Ag+Speed accelerate, and then Ag+The catalytic capability of ion pair leaching of ores gets a promotion.
Claims (10)
1. a kind of method of surfactant and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, it is characterised in that with table
The combination of face activating agent and silver nitrate solution is as catalyst.
2. the method for surfactant as claimed in claim 1 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, carries out according to the following steps：
(1) bacterium solution containing Acidithiobacillus ferrooxidans strain GF is inoculated into 9K culture mediums, be made containing bacteria culture fluid；
(2) pH value of nutrient solution is adjusted with sulfuric acid solution, is then placed within constant temperature oscillation case and is cultivated, be to bacterium solution current potential
During 580~630mV, culture bacterium solution is obtained；
(3) carrollite powder is added in culture bacterium solution and ore pulp is made, add the combination of surfactant and silver nitrate solution,
Between 1.2~2.0, extraction time is 3~8 days for slurry pH control in leaching process.
3. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (1), inoculum concentration is bacterium solution and the volume ratio of 9K culture mediums is 1：(5~10).
4. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (2), adjusts the pH value of nutrient solution to 1.2~2.0.
5. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (2), is cultivated under conditions of temperature is 30~40 DEG C and rotating speed is 140~200rpm.
6. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (3), ore pulp mass concentration is 5%~20%.
7. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (3), surfactant and silver nitrate addition are 0.1~0.3gL by surfactant concentration-1, Ag+Ion concentration is 5~25mg/L.
8. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, the surfactant described in step (3) is selected from：Polysorbas20 or Tween 80.
9. the method for surfactant as claimed in claim 2 and silver ion concerted catalysis copper cobalt sulfide ore Bioleaching, its
It is characterised by, in step (3), is leached under conditions of temperature is 30~40 DEG C and rotating speed is 140~200rpm.
10. a kind of surfactant as described in claim 1-9 any one is given birth to silver ion concerted catalysis copper cobalt sulfide ore
The method that thing leaches, it is characterised in that cobalt mass percent is 0.1%~5% in described copper cobalt sulfide ore, granularity≤75 μm
Part account for the 70%~90% of miberal powder gross weight.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114231739A (en) * | 2021-12-22 | 2022-03-25 | 中国地质科学院 | Method for leaching chalcopyrite |
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